Before data from multiple sources can be loaded into the data warehouse,which of the following activities must be performed?
A)The company must obtain explicit permission from all public and private data sources before their data can be used in the data warehouse.
B)Operational system reports must be run,as the extraction process that loads the data warehouse usually deletes the data from the operational system.
C)Data inconsistencies must be removed so that the warehouse has homogeneous data for analysis and reporting purposes.
D)The operational system must create and file the appropriate XBRL instance document with the SEC.

Question

Quizplus · Accepted Answer

Before data from multiple sources can be loaded into the data warehouse, data inconsistencies must be removed so that the warehouse has homogeneous data for analysis and reporting purposes. This is because the data stored in different systems may have inconsistencies, such as different coding structures, field names, or data types. These inconsistencies must be resolved through a process called data cleansing, which ensures the data is accurate, complete, and consistent. This is critical for effective analysis and reporting. The other options are not necessarily required for loading data into the data warehouse. Obtaining permission from data sources may be necessary, but it is not always required, and operational system reports do not need to be run before loading data into the data warehouse. Finally, the XBRL instance document is related to financial reporting and does not pertain to loading data into the data warehouse.

Before Data from Multiple Sources Can Be Loaded into the Data